• Remove slide cover. Place calculator face down.• Using a small Phillips screwdriver, remove screws from back case.• Remove back case.• Remove discharged batteries.• Install new batteries positive side up, as shown on diagram inside case.• Run a coin across the reset pad on the upper right hand corner of the printed circuit board. • Replace back case, and then replace screws.• Press [OFF], [ON/C], [ON/C].

Note: The calculator cannot hold data in memory when batteries are removed or become discharged.